igiy.] F. F. IvAidIvAw : Indian Dragonflies. 37 



median row of spots decidedly nearer the nodus, and the middle 

 spot of the row about half the length of the anterior and pos- 

 terior spots ; in fenestrella the three are more often sub-equal 

 (see his figures 8-11, loc. cit.). Specimens of quadriniaculata from 

 Darjiling have occasionally all the spots of the median row quite 

 small though there is marked individual variation both in these 

 and in the size of the apical spot. 



On the whole, however, it is correct to say that the specimen 

 figured by Williamson, which is from Burma, is less easy to dis- 

 tinguish from fenestrella than the average specimen from Darjiling 

 so far as my experience goes. 



29. Rhinocypha fenestrella spuria, Selys. 



R. spuria, Kirby, Cat. Odoimta, p. 113. 



Selys, Ann. Mas. Civ. Genovn, (2) X (XXX), p. 59. 



2 cf cf , Khasia Hills, old Museum collection. 



Labelled by de Selys R. quadriniaculatn. 



Length of hind- wing 28 mm. 



These specimens from their size and their locality are evi- 

 dently examples of the race described as R. spuria by de .Selys, 

 Except on account of their large size I believe they cannot be dis- 

 tinguished from typical quadriniaculata. 



De Selys gives the length of the hind-wing of his examples as 

 26-27 mm. 



There are two males in the British Museum collection which 

 I believe belong to this race. They are labelled from the Chin 

 Hills, Burma. 



30. Rhinocypha iridea, Selys. 



(PI. II, fig. 5). 



R. ii'idea. Selvs, Ann. Mns. Civ. Genova, \2) X (XXX). pp. 49-'-494 

 (1891). 



This beautiful species is not represented in the Museum collec- 

 tion. There are several examples in the British Museum. 



It occupies a position somewhat isolated in the group to which 

 it belongs. Its wings are distinctly wider than in other species of 

 the fenestrata series, and the colour pattern is to some extent, I 

 think, intermediate between the typical fenestrata forms and the 

 quadriniaculata group. I am inclined to regard it as an annectant 

 species between the two groups. In its own group its nearest ally 

 would appear to be R. fenestrata (Ramb.) of Java. The present 

 species is probably confined to Burma. 



31. Rhinocypha biforata, Selys. 



R. biforata, Kirby, Cat. Udonata, p. 111.. 



Laidlaw, Proc. Zool. Soc. London, 1902 (ii, p. S8. 

 Williamson, Proc. U.S. Xat. Mas.. XXVIII, p. 179, rig. 12 

 ( 1904I. 



